实现效果
如下图所示,在手机浏览器中访问京东的手机版网站(m.jd.com),顶部会有一个广告图,点击这个广告图,如果手机上已经安装了京东App,则直接打开,如果没有安装,则开始下载。
实现方式
1.为Android应用的启动Activity设置一个Schema,如下:
<data android:host="splash" android:scheme="cundong"/>
2.用户点击浏览器中的链接时,在动态创建一个不可见的iframe,并且让这个iframe去加载步骤1中的Schema,如下:
var ifr = document.createElement(‘iframe‘);
ifr.src="cundong://splash"
3,如果在指定的时间内没有跳转成功,则当前页跳转到apk的下载地址(或下载页),如下:
window.location = download_url;
HTML代码
<!doctype html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="apple-mobile-web-app-status-bar-style" content="black"/>
<title>this‘s a demo</title>
<meta id="viewport" name="viewport" content="width=device-width,initial-scale=1.0,minimum-scale=1.0,maximum-scale=1.0,minimal-ui">
</head>
<body>
<div>
<a id="J-call-app" href="javascript:;" class="label">立即打开>></a>
<input id="J-download-app" type="hidden" name="storeurl" value="http://m.chanyouji.cn/apk/chanyouji-2.2.0.apk">
</div>
<script>
(function(){
var ua = navigator.userAgent.toLowerCase();
var t;
var config = {
/*scheme:必须*/
scheme_IOS: ‘cundong://‘,
scheme_Adr: ‘cundong://splash‘,
download_url: document.getElementById(‘J-download-app‘).value,
timeout: 600
};
function openclient() {
var startTime = Date.now();
var ifr = document.createElement(‘iframe‘);
ifr.src = ua.indexOf(‘os‘) > 0 ? config.scheme_IOS : config.scheme_Adr;
ifr.style.display = ‘none‘;
document.body.appendChild(ifr);
var t = setTimeout(function() {
var endTime = Date.now();
if (!startTime || endTime - startTime < config.timeout + 200) {
window.location = config.download_url;
} else {
}
}, config.timeout);
window.onblur = function() {
clearTimeout(t);
}
}
window.addEventListener("DOMContentLoaded", function(){
document.getElementById("J-call-app").addEventListener(‘click‘,openclient,false);
}, false);
})()
</script>
</body>
</html>
AndroidMainfext.xml
<activity
android:name=".activity.LauncherActivity"
android:configChanges="orientation|keyboardHidden|navigation|screenSize"
android:label="@string/app_name"
android:screenOrientation="portrait" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />
<data android:host="splash" android:scheme="cundong" />
</intent-filter>
</activity>
时间: 2024-10-03 14:42:05